Glenn Anthony Tan, M.D.
NPI 1689692410ActiveIndividual· Obstetrics & Gynecology· Beloit, WI
Obstetrics & Gynecology (M.D.) with Beloit Health System Inc, practicing in Beloit, Wisconsin. 65 Medicare patients in 2024, $12,588 paid; nearly all of their 148 Part D prescriptions were generic (90%). Intuitive Surgical, Inc. reported $5,804 in payments in 2025, mostly education. Lists Beloit Health System as a hospital affiliation.
Overview
| NPI | 1689692410 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 18, 2006 |
| Last updated in NPPES | Oct 20, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Obstetrics & Gynecology Primary | 207V00000X | 50634 | WI |
| Obstetrics & Gynecology | 207V00000X | 036-119964 | IL |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Obstetrics/Gynecology (IL); Practitioner - Obstetrics/Gynecology (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 65 |
|---|---|
| Services billed | 140 across 21 procedure codes |
| Paid by Medicare | $12,588 |
Part D prescriptions in 2024
| Prescriptions (claims) | 148 · 262 30-day fills |
|---|---|
| Patients | 60 |
| Total drug cost | $6,537 |
| Generic share | 90% of claims |
Education and affiliations
| Graduation year | 1988 |
|---|---|
| Medicare specialty | Obstetrics/Gynecology |
Medical group
- Beloit Health System IncBeloit, WI · 135 clinicians
Hospital affiliation
- Beloit Health SystemBeloit, WI
Industry payments (Open Payments)
- 2025$5,804 · 10 payments from 1 company
- 2024$31.92 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Intuitive Surgical, Inc. | $5,804 | 10 |
What the 2025 payments were for
- Education$4,500 · 3 payments
- Travel and Lodging$886.56 · 5 payments
- Food and Beverage$417.89 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other OB-GYNs in Beloit
- 1134376486
- 1265408009
- 1245544535
- 1811906738
- 1629087069
- 1619657434